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LuckyWell [14K]
2 years ago
14

Evaluate f(2) - f(-1) when f(x) = 6x² - 1

Mathematics
1 answer:
Illusion [34]2 years ago
7 0

Answer:

f(x) = 6 x^2 - 1

f(2) = 6 * 2^2 - 1 = 23

f(-1) = 6 * -1^2 - 1 = 6 * 1 - 1 = 5

f(2) - f(-1) = 23 - 5 = 18

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Authur earned $136 in three weeks. He goes back to school in one more week. He needs at least $189 to buy the new coat that he w
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Answer:

136+ m ≥ 189 is the required inequality : m: The earning in 4th week

Arthur needs to earn AT LEAST $53 in the fourth week to buy the coat which costs at least $189.

Step-by-step explanation:

The amount earned by Arthur in first 3 weeks = $136

The amount needed to buy a coat = AT LEAST $189

Let us assume the amount Arthur needs to earn more to buy  coat = $m

⇒ $ 136 + Amount Earned in 4th week  ≥ $189

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3 0
3 years ago
An officer printer prints 25 photos in 12.5 minutes. A home printer prints 15 photos in 6 minutes. Which printer is faster, How
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Answer:

The home printer is faster.

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25 photos in 12.5 minutes

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And 4 photos in 2 minutes(this is relevant later)

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Step-by-step explanation:

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2 years ago
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